diff --git a/Lib/idlelib/idlever.py b/Lib/idlelib/idlever.py
index 40f8cef..87d84fc 100644
--- a/Lib/idlelib/idlever.py
+++ b/Lib/idlelib/idlever.py
@@ -1 +1 @@
-IDLE_VERSION = "3.4.2"
+IDLE_VERSION = "3.4.3rc1"